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Finding the Fourth Proportional to 5,767.25, 8,651.21 and 1,819.13

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Solution

The fourth proportional to 5,767.25, 8,651.21 and 1,819.13 is: 2,728.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,767.25 : 8,651.21 = 1,819.13 : x
  2. Step 2: Convert to fraction form
    5,767.25/8,651.21 = 1,819.13/x
  3. Step 3: Cross multiply
    5,767.25x = 8,651.21 × 1,819.13
  4. Step 4: Simplify right side
    5,767.25x = 15,737,623.30
  5. Step 5: Solve for x
    x = 15,737,623.30/5,767.25
  6. Step 6: Final answer
    x = 2,728.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.